Air quality index [µg/m3]:
excellent ≤ 20
good ≤ 60
lightly polluted ≤ 100
moderately polluted ≤ 140
heavily polluted ≤ 200
severely polluted > 200
PM 2.5
[µg/m3]
PM 10
HOUR OPOLSKA ST. ROOF (BEFORE FILTERS)  AIR SUPPLIED TO OFFICES
0600184heavily pollutedgood281excellent
0500146heavily pollutedgood211excellent
0400110moderately pollutedexcellent201excellent
0300108moderately pollutedexcellent201excellent
0200117moderately pollutedexcellent201excellent
0100121moderately pollutedexcellent181excellent
0000126moderately pollutedexcellent171excellent
2300134moderately pollutedexcellent161excellent
2200151heavily pollutedexcellent161excellent
2100131moderately pollutedexcellent181excellent
2000110moderately pollutedexcellent161excellent
190070lightly pollutedexcellent131excellent
180069lightly pollutedexcellent111excellent
170046goodexcellent71excellent
160032goodexcellent51excellent
150027goodexcellent51excellent
140024goodexcellent51excellent
130032goodexcellent81excellent
120042goodexcellent111excellent
110077lightly pollutedexcellent161excellent
1000103moderately pollutedgood221excellent
0900138moderately pollutedgood231excellent
0800115moderately pollutedexcellent191excellent
070099lightly pollutedexcellent191excellent